$.ajax({type:"GET",url:'http://taotao.qq.com/v1/qz_first/firstjson?uin=18958069',success:callback,dataType:'script',scriptCharset:'GB2312'});
var callback = function(json) {
    if (json && typeof json === 'object') {
        var title = json.items[0].title || '';
        $('#taotao').slideUp('slow', function() {
            $(this).text(title).slideDown()
        });
    }
}